PassManager is now in it's own header file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1608 91177308-0d34-0410-b5e6-96231b3b80d8

tools/gccas/gccas.cpp

@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Module.h"
+#include "llvm/PassManager.h"
 #include "llvm/Assembly/Parser.h"
 #include "llvm/Transforms/CleanupGCCOutput.h"
 #include "llvm/Transforms/LevelChange.h"